Genetic heterogeneity of residual variance - estimation of variance components using double hierarchical generalized linear models [PDF]
Genetics Selection Evolution, 2010 Background The sensitivity to microenvironmental changes varies among animals and may be under genetic control. It is essential to take this element into account when aiming at breeding robust farm animals.
Fikse Freddy +4 more
doaj +2 more sources
Analysis of variance components for genetic markers with unphased genotypes [PDF]
Frontiers in Genetics, 2016 An ANOVA type general multi-allele (GMA) model was proposed in cite{Wang2014} on analysis of variance components for quantitative trait loci or genetic markers with phased or unphased genotypes.
Tao Wang
doaj +2 more sources
Using the realized relationship matrix to disentangle confounding factors for the estimation of genetic variance components of complex traits [PDF]
Genetics Selection Evolution, 2010 Background In the analysis of complex traits, genetic effects can be confounded with non-genetic effects, especially when using full-sib families. Dominance and epistatic effects are typically confounded with additive genetic and non-genetic effects ...
Visscher Peter M +3 more
doaj +3 more sources
Variance components for body weight in Japanese quails (Coturnix japonica)
Brazilian Journal of Poultry Science, 2005 The objective of this study was to estimate the variance components for body weight in Japanese quails by Bayesian procedures. The body weight at hatch (BWH) and at 7 (BW07), 14 (BW14), 21 (BW21) and 28 days of age (BW28) of 3,520 quails was recorded ...
RO Resende +7 more
doaj +2 more sources
Estimation of genetic variation in residual variance in female and male broiler chickens [PDF]
, 2008 In breeding programs, robustness of animals and uniformity of end product can be improved by exploiting genetic variation in residual variance. Residual variance can be defined as environmental variance after accounting for all identifiable effects.
Mulder, H. A. +6 more
core +1 more source
Prediction of breeding values and selection responses with genetic heterogeneity of environmental variance [PDF]
, 2007 There is empirical evidence that genotypes differ not only in mean, but also in environmental variance of the traits they affect. Genetic heterogeneity of environmental variance may indicate genetic differences in environmental sensitivity.
Mulder, H. A. +7 more
core +1 more source
Genetic heterogeneity of residual variance in broiler chickens [PDF]
, 2006 Aims were to estimate the extent of genetic heterogeneity in environmental variance. Data comprised 99 535 records of 35-day body weights from broiler chickens reared in a controlled environment.
Rowe Suzanne J +14 more
core +1 more source
, 2022 Variance components (proportion of variance explained for the two different genetic clusters for 13 morphological traits).
Kate Ostevik (12463197) +3 more
core +1 more source
Maternal effect on sports performance traits in horses
Czech Journal of Animal Science, 2019 The aim of the study was to estimate the direct additive genetic effect and the additive maternal effect on the level of traits estimated during the Polish Jumping Championships for Young Horses.
Tomasz Próchniak +2 more
doaj +1 more source
Genetic analysis of environmental variation [PDF]
, 2010 Environmental variation (V-E) in a quantitative trait - variation in phenotype that cannot be explained by genetic variation or identifiable genetic differences - can be regarded as being under some degree of genetic control. Such variation may be either
HAN A. MULDER +5 more
core +1 more source